Subscan API vs SubSquid

This comparison is most useful for teams deciding whether their Polkadot data workflow should start from a ready-made indexed API product or from a customizable indexing framework. The real decision is less about which product is 'better' in the abstract and more about whether the team values fast access to published explorer-style reads or deeper control over how indexed data is modeled and served

Available

Claim-safe statuses distinguish source profiles, evaluation-only pages, requested integrations, and available gateway/tooling surfaces without exposing paid procurement, approval, or provider-fetching flows

At a glance

This page answers whether a team should start with Subscan API or evaluate SubSquid by comparing provider fit, implementation friction, coverage, and current PubFi routing status without turning the comparison into a generic ranking claim.

Decision summary

Primary query
subscan vs subsquid
Request ID
compare-subscan-subsquid
Selected source
Subscan API
Candidates
2
Last verified
PubFi status
Comparison and routing-evaluation page; candidate source pages carry their own claim-safe integration status.

Official-source citations

Subscan API Primary query
subscan api Source
Subscan API Primary coverage
Substrate accounts, extrinsics, governance, staking, and asset data Source
Subscan API Discovery category
On-chain state and governance Source
Subscan API Auth model
API-key authentication is required for live Subscan API use Source
Subscan API Commercial fact
Free API access is documented with one API key and a 5 req/sec limit; paid-plan pricing is not public in the support article Source
Subscan API PubFi status
PubFi gateway route documentation exists for Subscan; upstream account, auth, and route limits still apply Source
SubSquid Primary coverage
Custom blockchain indexing and query APIs across Substrate, EVM, and other networks Source
SubSquid Fixture coverage
On-chain state coverage for the Polkadot fixture target Source

Routing comparison

Subscan API

Available

Explorer and indexed Substrate chain API for accounts, extrinsics, governance, staking, and asset data

Detail page indexable

SubSquid

Available

Indexing and query infrastructure for building custom blockchain data APIs across Substrate, EVM, and other networks

Detail page indexable

Coverage MatchReasonCoverage Match
Subscan API on-chain state coverageCapabilitySubSquid on-chain state coverage
Free Requires AuthProcurementFree Requires Auth

Editorial verdict

For most Discovery readers, Subscan vs SubSquid is a product-shape decision rather than a narrow protocol comparison. Subscan is the cleaner starting point when a team wants fast indexed reads across the Polkadot ecosystem, while SubSquid becomes more compelling when the team needs to own more of the indexing and query design.

Key differences

  • Subscan is presented as an authenticated indexed API for more than 70 substrate-based networks, with explorer-oriented coverage across accounts, extrinsics, governance, staking, and assets.
  • SQD positions itself as a broader data access and indexing platform with multiple access methods, including Portal API, Pipes SDK, and Squid SDK.

Decision guide

When to choose Subscan API

  • Choose Subscan when the team wants to consume a published indexed API surface quickly instead of designing its own indexing workflow first.
  • Choose Subscan when Polkadot ecosystem monitoring, governance reads, and explorer-style access matter more than pipeline customization.

When to choose SubSquid

  • Choose SubSquid when the team expects to build custom data pipelines, application-specific query layers, or broader multi-network indexing workflows.
  • Choose SubSquid when the implementation needs more control over how data is extracted and served than a fixed explorer-style API usually provides.

Use case fit matrix

Use caseBetter fitWhy
Shipping Polkadot ecosystem reads quickly with minimal custom indexing workSubscan APISubscan is already positioned as a published authenticated API surface for common Substrate data reads, so teams can start from the provider's indexed product shape.
Building a custom application data pipeline on top of indexed blockchain dataSubSquidSQD explicitly presents multiple data-access methods and SDK-driven indexing options, which better fits teams that want to shape their own pipeline.
Evaluating Polkadot data products before picking an ecosystem defaultDependsBoth belong in the shortlist, but the better fit depends on whether the team values a ready-made indexed API or an indexing framework they can shape themselves.

Pricing and integration friction

  • Subscan makes API-key authentication a required part of onboarding, so teams should treat account setup and plan fit as part of the implementation decision.
  • SQD's product surface spans direct HTTP access, streaming pipelines, and a full SDK stack, which increases flexibility but also means the team must pick an operating model before implementation settles.

Side-by-side source facts

FieldSubscan APISubSquid
ProviderSubscanSubsquid
Last verified2026-06-022026-05-29
Primary chainpolkadotpolkadot
Primary categoryon-chain-stateon-chain-state
Page tierTier 1Tier 1
Primary querysubscan apiNot verified in fixture
Primary coverageSubstrate accounts, extrinsics, governance, staking, and asset dataCustom blockchain indexing and query APIs across Substrate, EVM, and other networks
Discovery categoryOn-chain state and governanceNot verified in fixture
Auth modelAPI-key authentication is required for live Subscan API useNot verified in fixture
Commercial factFree API access is documented with one API key and a 5 req/sec limit; paid-plan pricing is not public in the support articleNot verified in fixture
PubFi statusPubFi gateway route documentation exists for Subscan; upstream account, auth, and route limits still applyNot verified in fixture
Fixture coverageNot verified in fixtureOn-chain state coverage for the Polkadot fixture target

Capability, pricing, auth, and status rows

FieldSubscan APISubSquid
Candidate statusAvailableAvailable
Directory statusComing SoonIndexed Only
Public fixture statusDegradedCurrent
ProtocolsRESTGraphQL
Source auth methodsAPI keyAPI key
Pricing modelFreemiumFreemium
Free tierFree API plan allows one API key with a 5 req/sec limit.Not verified in fixture
Starting priceNot verified in fixtureNot verified in fixture
Free rate limit5 req/secNot verified in fixture
Paid rate limitNot verified in fixtureNot verified in fixture
Verified feature flagsNot verified in fixtureNot verified in fixture
Compared capabilitySubscan API on-chain state coverageSubSquid on-chain state coverage
Capability statusCurrentCurrent
Capability auth requirementAPI keyAPI key
Procurement stateFree, requires authFree, requires auth
Coverage targetspolkadotpolkadot
Output contractschain_state_recordchain_state_record